EP1727715B1 - Scheibenwischvorrichtung - Google Patents

Scheibenwischvorrichtung Download PDF

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Publication number
EP1727715B1
EP1727715B1 EP05716612.6A EP05716612A EP1727715B1 EP 1727715 B1 EP1727715 B1 EP 1727715B1 EP 05716612 A EP05716612 A EP 05716612A EP 1727715 B1 EP1727715 B1 EP 1727715B1
Authority
EP
European Patent Office
Prior art keywords
bearing
wiper device
shaft
gear
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP05716612.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1727715A1 (de
Inventor
Mario Huesges
Achim Hawighorst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1727715A1 publication Critical patent/EP1727715A1/de
Application granted granted Critical
Publication of EP1727715B1 publication Critical patent/EP1727715B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/126—Self-adjusting during operation, e.g. by a spring
    • F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs

Definitions

  • eccentric bushings increase the cost of their unit costs, especially in high quantities, the transmission.
  • eccentric bushings require a certain manufacturing effort, for example in the manufacture of the press fit, through which the eccentric bushing is held.
  • the window regulator drive to be used gear motors known which have a gear-side gear pair with a trained as a worm and a worm gear.
  • the worm and the worm wheel are arranged on intersecting shafts, of which the worm-bearing, motor-side driven shaft for compensating the backlash is arranged endwise in a bearing supported axially axially against the transmission housing.
  • the bearing body receiving the shaft end is supported so as to be axially displaceable by way of a encompassing helical spring to the transmission housing.
  • a similar punctual end support of a shaft carrying the screw against an elastic in itself or elastic means behind-engaged support is the US-A-203/0172761 or the US-A-5212999 refer to.
  • the meshing gears are formed by a worm wheel and a bevel gear and which is provided on the shaft equipped with the bevel gear bearing via a device via which the meshing gears pressed against each other.
  • the aperture may have a caulking which presses on the shaft and thus urges the meshing gears against each other, thereby reducing the backlash of the meshing gears.
  • the bearing can be arranged in a cover of the transmission housing. As a result, the assembly of the bearing and the shaft is considerably simplified.
  • the lid acts like a spring. Consequently, it presses the meshing gears against each other to reduce their backlash.
  • the lid is made of metal, it has a particularly good spring action. It can be a cost-effective stamped part, which is deep-drawn.
  • the bearing can have a cylindrical sleeve to reduce bearing wear.
  • the cylindrical sleeve reduces running noise and allows transmission of higher torques through the shaft.
  • cylindrical sleeve A particularly low wear and high smoothness guaranteed the cylindrical sleeve, if it is made of a sintered material and soaked in oil.
  • the friction between the shaft and the bearing is minimized, may be arranged on the front side of the shaft, a disc with a convex side. If the shaft rests with its end face on the convex side of the disc, between the shaft and the disc only a very small contact surface, so that there is only a very small friction between the shaft and the disc.
  • a disc with a small extension having paragraph may be arranged on the front side of the shaft, a disc with a small extension having paragraph. Due to the small extent having paragraph when contact of the shaft with the paragraph also only a very low friction.
  • Fig. 1 shows a windshield wiper device 10 with a gear 11.
  • the gear 11 has in a gear housing 12 designed as a bevel gear 13 and a trained as a worm gear 14.
  • the worm wheel 14 may for example be connected to an armature shaft of a wiper motor.
  • the bevel gear 13 is seated on a shaft 15 on which a crank 16 is arranged.
  • On the gear housing 12, a bearing 17 and a bearing 18 for supporting the shaft 15 are arranged.
  • the bearing 18 has a spring 19 which presses the bevel gear 13 against the worm wheel 14, thereby reducing the backlash of the meshing gears 13 and 14.
  • a washer 100 is arranged between the spring 19 and the gear housing 12, a washer 100 is arranged.
  • the bearing 18 has a plastic bushing 101.
  • An opening 102 of the gear housing 12 is provided with a peripheral edge 103 which presses the plastic bushing 101 against the end of the shaft 15, and thus the bevel gear 13 against the Worm wheel 14 presses. Consequently, the edge 103 forms an additional measure to reduce the backlash of the two meshing gears 13 and 14.
  • the plastic bushing 101 can be advantageously injected into the housing opening 102.
  • the plastic bush 101 also seals the gear 11 in the region of the opening 102 from the environment.
  • a windshield wiper device 30 is shown, the transmission 31 is provided with a bearing 32.
  • the bearing 32 has a peripheral edge 33, which can be produced for example by caulking. Between the edge 33 and the shaft 15 a provided with a convex side disc 34 is attached. The shaft 15 rests with its end face on the convex side of the disc 34, so that the shaft 15 and the disc 34 have only a minimal contact surface.
  • the bearing 32 only a minimal bearing friction.
  • a gear 51 is provided, the bearing 52 is equipped with a disc 53.
  • the disc 53 has a shoulder 54 which has a small extent. Due to the small extent of the heel 54 between the voltage applied to the shoulder 54 shaft 15 and the shoulder 54 only a small contact surface, so that the bearing 52 has only a minimal bearing friction.
  • the disc 53 has an edge 55, through which a caulking 56 is pressed. In this way the pressure acting on the bevel gear 13 and the worm gear 14 is maintained to minimize the backlash. By the edge 55 and caulking 56, the disc 53 can not tilt.
  • a bearing 502 is provided in the opening 503, a circumferential groove 504 is located.
  • the circumferential groove 504 is formed either when pressing a disc 505 or it is prefabricated.
  • the groove 504 forms a form fit, which ensures the pressure of the bevel gear 13 on the worm wheel 14. By this constructive measure can on the edge 103 (see Fig. 1 ) and the caulking 45 (see Fig. 4 ) and 56 (see Fig. 5a ) are waived.
  • the disk 505 has a low-expansion shoulder 506.
  • Fig. 6 shows a windshield wiper device 60 with a gear 61.
  • the gear 61 has a bearing 62 that is provided with neither a cylindrical sleeve nor with a plastic bushing. Instead, in an opening 63, a circumferential groove 64 is mounted in which a disc 65 is pressed.
  • This variant is particularly suitable for smaller gears 61, in which smaller torques are transmitted and thus only lower bearing forces in the bearing 62 act.
  • the disc 65 also has a low-expansion shoulder 66.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
  • Braking Arrangements (AREA)
EP05716612.6A 2004-03-12 2005-02-01 Scheibenwischvorrichtung Expired - Fee Related EP1727715B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012121A DE102004012121A1 (de) 2004-03-12 2004-03-12 Scheibenwischvorrichtung
PCT/EP2005/050423 WO2005087558A1 (de) 2004-03-12 2005-02-01 Scheibenwischvorrichtung

Publications (2)

Publication Number Publication Date
EP1727715A1 EP1727715A1 (de) 2006-12-06
EP1727715B1 true EP1727715B1 (de) 2013-04-10

Family

ID=34895278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05716612.6A Expired - Fee Related EP1727715B1 (de) 2004-03-12 2005-02-01 Scheibenwischvorrichtung

Country Status (7)

Country Link
EP (1) EP1727715B1 (ko)
KR (1) KR20060128003A (ko)
CN (1) CN1930028A (ko)
BR (1) BRPI0508029A (ko)
DE (1) DE102004012121A1 (ko)
ES (1) ES2403412T3 (ko)
WO (1) WO2005087558A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906780B1 (ko) * 2005-12-05 2009-07-09 동양기전 주식회사 리어와이퍼 구동장치
DE102005062696A1 (de) * 2005-12-28 2007-07-05 Robert Bosch Gmbh Scheibenwischvorrichtung
DE102006006844A1 (de) * 2006-02-15 2007-08-23 Krones Ag Palettenwellenhalterung
DE102007055642A1 (de) * 2007-11-21 2009-05-28 Robert Bosch Gmbh Wischervorrichtung
DE102008042245A1 (de) * 2008-09-22 2010-04-08 Robert Bosch Gmbh Getriebe
DE102010064295A1 (de) * 2010-12-29 2012-07-05 Robert Bosch Gmbh Lagereinrichtung für eine Antriebseinheit und Verstellantrieb mit einer Lagereinrichtung
CN106915280B (zh) * 2017-03-22 2023-05-26 苏州星诺奇科技股份有限公司 用于汽车座椅调节器的传动装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329120A1 (de) * 1983-08-11 1985-02-21 Siemens AG, 1000 Berlin und 8000 München Anordnung zur begrenzung des axialspiels einer gleitgelagerten welle eines motorantriebs
US4722726A (en) 1986-02-12 1988-02-02 Key Pharmaceuticals, Inc. Method and apparatus for iontophoretic drug delivery
JP2538598Y2 (ja) 1990-05-14 1997-06-18 自動車電機工業株式会社 モータ軸のスラスト受け装置
JPH04134161U (ja) 1991-06-04 1992-12-14 株式会社三ツ葉電機製作所 ウオーム減速機付モータ
DE4210302C2 (de) 1992-03-28 1994-11-24 Licentia Gmbh Getriebemotor, insbesondere elektromotorischer Fensterantrieb oder Schiebedachantrieb
FR2771469B1 (fr) 1997-11-27 2000-02-04 Meritor Light Vehicle Sys Ltd Motoreducteur pour l'entrainement d'equipements de vehicules tel que leve-vitre avec suppression du jeu axial de sa ligne d'arbre
DE10034123C2 (de) 2000-07-13 2003-03-20 Bosch Gmbh Robert Wellenlagerung
DE10051309A1 (de) 2000-10-17 2002-05-16 Bosch Gmbh Robert Lageraufnahme

Also Published As

Publication number Publication date
ES2403412T3 (es) 2013-05-17
WO2005087558A1 (de) 2005-09-22
EP1727715A1 (de) 2006-12-06
BRPI0508029A (ko) 2007-07-03
CN1930028A (zh) 2007-03-14
KR20060128003A (ko) 2006-12-13
DE102004012121A1 (de) 2005-09-29

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